3G 



proportional to the swiftness of the stream, the maximum being 

 found in the months of January and February. 



Simulium larvae were also found in practically every stream in the 

 neighbourhood, and the author believes that larvae would be found 

 in all streams in Nyasaland which, for a sufficiently long period in the 

 year, carried enough water and fulfilled the other well-known con- 

 ditions necessary for the development of these flies. He thinks that 

 there is some possible support for the theory that Si)nidium may be 

 the carrier of the pellagra virus ; at all events there are no facts in 

 Nyasaland n^ilitating against that theory, though at the same time 

 all the data collected equally support the theory of defective nutrition 

 as the cause of the disease. 



[The species of SimiilitDn obtained by Dr. Stannus and Mr. Ballard 

 have recently been identified by M. Roubaud as *S'. hid pes, Mg.. *S'. 

 pusillmn, Fries, and *S'. vanum, Fries, all of which occur also in 

 Europe.— Ed.] 



SuRCouF (M. J.). Note sur les Tabanidae d'Alg^rie and de Tunisie. 

 [Note on the Tabanidae of Algeria and Tunis.] — Archives de 

 VInstitut Pasteur de Tunis, iii-iv,' 1913, pp. 183-186, 1 pi. 



The author says that in the course of three journeys made in recent 

 years in Algeria and Tunis he has studied biting Diptera and especially 

 the Tabanidae. In the group of large blackish Tahanus with a 

 bluish sheen on the first segment of the abdomen there are several 

 species which are frequently confused, and for these the distinctive 

 characters are given. Tahanus algirus, Macq., is very common on 

 grasslands in Algiers in May and June, and at Tunis the author found 

 a new species, very closely related to it, which he proposes to call 

 Tabanus tunisiensis. 



Laveran (A.) & NicoLLE (C). Le Kala Azar Mediterran6en ou 

 Infantile. [Mediterranean or Infantile Kala Azar.] — Archives de 

 VhutHut Pasteur de Tunis, iii-iv, 1913, pp. 204-242. 



This is the author's report presented to the section of Tropical 

 Medicine and Hygiene at the 17th International Medical Congress, 

 London, 1913. The history, medical geography, symptoms, mode of 

 cultivation of Leishmania infantum, the distribution of the disease 

 amongst animals and the relation of Mediterranean to Indian Kaja 

 Azar, are all discussed. The author regards the propagation of the 

 disease amongst dogs by fleas as proved and that Pulex irritans as well 

 as Ct. serraticeps is capable of propagating Leishmania infantum. 



Ross (!'. H.). Report of the Bacteriological Section for the latter 

 half of the Year 1912. Nairohi Lahorafory Repmts, Jub/- 

 December 1912, iii, 1913, pp. 1-36. 



On page 3 the author notes some cases reported to him which were 

 suspected to be pappataci fever. Phlebotojiius had not yet been found 

 in the Protectorate, but Manteufel on the coast of (ierman East Africa 

 has met with similar cases of fever and has caught Phh'hotomus whicli 

 have not yet been identified. Experiments nuule with Glossina 



